This is the ValueSet that contains all the codes in CH VACD Old Swiss Vaccine Codes (http://fhir.ch/ig/ch-vacd/ValueSet/ch-vacd-oldswiss-vaccines-vs) and CH VACD Old Swiss Vaccine Codes (http://fhir.ch/ig/ch-vacd/ValueSet/ch-vacd-oldswiss-vaccines-vs). E.g. what you have to deal with if you get resources containing codes in either of them